Faced with rising international food prices, governments around the world are working to protect domestic supplies and keep a lid on prices at home, The Washington Post reported over the weekend.

Russia has banned grain exports; Sri Lanka has released rice stocks and re-imposed a price ceiling; China has boosted interest rates. And rising food prices may have been a factor in driving Tunisia's president, Zine el-Abidine Ben Ali, from office last week.

Food prices in the United States, however, have been relatively stable.

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